content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ---------------------------------------
   * IntervalCategoryItemLabelGenerator.java
   * ---------------------------------------
   * (C) Copyright 2004-2012, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 11-May-2004 : Version 1, split from IntervalCategoryItemLabelGenerator (DG);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.labels;
  
  import java.io.Serializable;
  import java.text.DateFormat;
  import java.text.NumberFormat;
  
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.data.category.CategoryDataset;
  import org.jfree.data.category.IntervalCategoryDataset;
  
  /**
   * A label generator for plots that use data from an
   * {@link IntervalCategoryDataset}.
   */
  public class IntervalCategoryItemLabelGenerator
      extends StandardCategoryItemLabelGenerator
      implements CategoryItemLabelGenerator, PublicCloneable, Cloneable,
                 Serializable {
  
      /** For serialization. */
      private static final long serialVersionUID = 5056909225610630529L;
  
      /** The default format string. */
      public static final String DEFAULT_LABEL_FORMAT_STRING
          = "({0}, {1}) = {3} - {4}";
  
      /**
       * Creates a new generator with a default number formatter.
       */
      public IntervalCategoryItemLabelGenerator() {
          super(DEFAULT_LABEL_FORMAT_STRING, NumberFormat.getInstance());
      }
  
      /**
       * Creates a new generator with the specified number formatter.
       *
       * @param labelFormat  the label format string (<code>null</code> not
       *                     permitted).
       * @param formatter  the number formatter (<code>null</code> not permitted).
       */
      public IntervalCategoryItemLabelGenerator(String labelFormat,
                                                NumberFormat formatter) {
          super(labelFormat, formatter);
      }
  
      /**
       * Creates a new generator with the specified date formatter.
       *
       * @param labelFormat  the label format string (<code>null</code> not
       *                     permitted).
       * @param formatter  the date formatter (<code>null</code> not permitted).
       */
      public IntervalCategoryItemLabelGenerator(String labelFormat,
                                                DateFormat formatter) {
          super(labelFormat, formatter);
      }
  
      /**
       * Creates the array of items that can be passed to the
       * <code>MessageFormat</code> class for creating labels.
       *
       * @param dataset  the dataset (<code>null</code> not permitted).
       * @param row  the row index (zero-based).
       * @param column  the column index (zero-based).
       *
       * @return The items (never <code>null</code>).
       */
      @Override
      protected Object[] createItemArray(CategoryDataset dataset,
                                         int row, int column) {
          Object[] result = new Object[5];
          result[0] = dataset.getRowKey(row).toString();
          result[1] = dataset.getColumnKey(column).toString();
          Number value = dataset.getValue(row, column);
          if (getNumberFormat() != null) {
              result[2] = getNumberFormat().format(value);
          }
          else if (getDateFormat() != null) {
              result[2] = getDateFormat().format(value);
          }
  
          if (dataset instanceof IntervalCategoryDataset) {
              IntervalCategoryDataset icd = (IntervalCategoryDataset) dataset;
              Number start = icd.getStartValue(row, column);
              Number end = icd.getEndValue(row, column);
              if (getNumberFormat() != null) {
                  result[3] = getNumberFormat().format(start);
                  result[4] = getNumberFormat().format(end);
              }
              else if (getDateFormat() != null) {
                  result[3] = getDateFormat().format(start);
                  result[4] = getDateFormat().format(end);
              }
          }
          return result;
      }
  
  }
  